IT業界で広く認められるOracle Java SE 8 Programmer Iは、Oracle公式の認定資格です。JPNTestの1z1-808練習問題はOracleの公式出題ガイドに基づいて構成されており、398の問題で試験範囲を体系的に学べます。

Oracle 1z1-808 試験概要:

Oracle 1z1-808 試験シラバストピック:

1z1-808試験についてよくあるご質問

Oracle Java SE 8 Programmer I 認定 1z1-808 試験問題：

問題 #1

Which of the following can fill in the blank in this code to make it compile?

A. private
B. int
C. abstract
D. final
E. default

問題 #2

Given:
public class MyClass {
public static void main(String[] args) {
String s = " Java Duke ";
int len = s.trim().length();
System.out.print(len);
}
}
What is the result?

A. Compilation fails
B. 10
C. 9
D. 11
E. 8

問題 #3

View the Exhibit.
public class Hat {
public int ID =0;
public String name = "hat";
public String size = "One Size Fit All";
public String color="";
public String getName() { return name; }
public void setName(String name) {
this.name = name;
}
}
Given:
public class TestHat {
public static void main(String[] args) {
Hat blackCowboyHat = new Hat();
}
}
Which statement sets the name of the Hat instance?

A. blackCowboyHat.setName("Cowboy Hat");
B. blackCowboyHat.setName = "Cowboy Hat";
C. Hat.setName("Cowboy Hat");
D. setName("Cowboy Hat");

問題 #4

Given the code fragment:

What is the result?

A. Compilation fails only at line n1
B. Compilation fails only at line n2
C. Compilation fails at both line n1 and line n2
D. Jesse 25
Walter 52

問題 #5

Given this segment of code:

Which two statements, if either were true, would make the code compile? (Choose two.)

A. Cycle is an abstract superclass of MotorCycle.
B. MotorCycle is an interface that implements the Cycle class.
C. MotorCycle is a superclass of Cycle.
D. Cycle is an interface that is implemented by the MotorCycle class.
E. Cycle and MotorCycle both implement the Transportation interface.
F. Cycle and MotorCycle both extend the Transportation superclass.

解説：